Home / 36,918.48-55,397.16-28,209.36

Finding the Fourth Proportional to 36,918.48, 55,397.16 and 28,209.36

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Solution

The fourth proportional to 36,918.48, 55,397.16 and 28,209.36 is: 42,328.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,918.48 : 55,397.16 = 28,209.36 : x
  2. Step 2: Convert to fraction form
    36,918.48/55,397.16 = 28,209.36/x
  3. Step 3: Cross multiply
    36,918.48x = 55,397.16 × 28,209.36
  4. Step 4: Simplify right side
    36,918.48x = 1,562,718,429.42
  5. Step 5: Solve for x
    x = 1,562,718,429.42/36,918.48
  6. Step 6: Final answer
    x = 42,328.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.